JAK1 Antibody

Overview

JAK1 Antibody is a research-use-only Rabbit polyclonal (rabbit origin) Rabbit IgG directed against JAK1. It is supplied for interpretation-focused detection and comparative profiling in WB.

Key elements and design rationale

• Target context: This antibody is raised against Amino acids 78-115 (FALYDENTKLWYAPNRTITVDDKMSLRLHYRMRFYFTN) from the human protein were used as the immunogen for the JAK1 antibody.. Epitope context matters because isoforms, processing, and post-translational modifications can change what is accessible in a given assay.
• Format: Antigen affinity purified. Format influences background and compatibility with different detection chemistries; conjugated formats (when present) can simplify multiplexing and reduce reliance on secondary reagents.
• Species reactivity: Human, Mouse, Rat. Cross-species performance can vary with sequence divergence and epitope conservation, so interpretation should be anchored with appropriate biological controls.
• Applications: WB. These indicate assay contexts where the antibody is commonly applied; actual performance depends on sample type and processing.
• Limitations: This JAK1 antibody is available for research use only.. Consider these constraints when selecting controls and when comparing results across sample matrices.

Polyclonal reagents can differ in how they recognize epitope features. Monoclonal antibodies often provide more consistent epitope targeting across lots, while polyclonal preparations may broaden recognition across related epitope variants.

Biological background

JAK1 refers to the gene/protein target stated in the product record. Protein targets can exhibit context-dependent expression, regulated turnover, isoform diversity, and post-translational modifications that affect apparent molecular weight and epitope accessibility. For curated functional annotation, sequence features, and expression context, consult UniProtKB P23458, Ensembl, and Human Protein Atlas.

Research relevance and current trends

• Integrating antibody-based detection with single-cell and spatial atlasing efforts to connect RNA programs with protein-level abundance and localization in defined cell states.
• Expanding multiplexed imaging and high-content screening, where reagent specificity, cross-reactivity risk, and channel design (including direct conjugates) become central to interpretation.
• Growing emphasis on reproducibility and application-specific validation frameworks (e.g., genetic perturbation controls, orthogonal measurements, and independent antibody strategies) when drawing mechanistic conclusions.

Common research applications

• Western blot (WB): commonly used to compare relative abundance/size (e.g., band intensity or mobility shifts) between conditions.

Interpretation typically focuses on relative differences (presence/absence, fold-changes, compartment shifts, or population-level shifts) rather than absolute quantitation. When signal changes are observed, they may reflect altered expression, altered localization/trafficking, changes in modification state, or differences in sample composition; orthogonal readouts and appropriate controls help distinguish these possibilities.

Application details (record-specific): Western blot: 0.5-1ug/ml

Application notes (record-specific): Optimal dilution of the JAK1 antibody should be determined by the researcher.

Notes for experimental interpretation

• Product description (record-specific): JAK1 (Janus Kinase 1) is a human tyrosine kinase protein essential for signaling for certain type I and type II cytokines. It is a member of a new class of PTKs that are a large family of proteins characterized by the presence of a second phosphotransferase-related domain immediately N-terminal to the PTK domain--hence the name Janus. The JAK1 gene is mapped to 1p31.3. JAK1 is also important for transducing a signal by type I (IFN-a/b) and type II (IFN-g) interferons, and members of the IL-10 family via type II cytokine receptors. Additionally, Jak1 plays a critical role in initiating responses to multiple major cytokine receptor families. Loss of Jak1 is lethal in neonatal mice, possibly due to difficulties suckling. Expression of JAK1 in cancer cells enables individual cells to contract, potentially allowing them to escape their tumor and metastasize to other parts of the body.
• Potential confounders: isoforms, proteolytic processing, and PTMs can change epitope presentation and apparent size; fixation/denaturation state can also expose or mask epitopes. Species differences near the epitope may affect cross-reactivity.
• Control concepts: include genetic perturbation (KO/KD) or overexpression comparisons, orthogonal measurement (e.g., transcript or proteomics), and independent antibody/epitope strategies. For conjugated reagents, include staining-only/background controls appropriate to the detection chemistry.

Immunogen/epitope context is described as: Amino acids 78-115 (FALYDENTKLWYAPNRTITVDDKMSLRLHYRMRFYFTN) from the human protein were used as the immunogen for the JAK1 antibody.. Monoclonal and polyclonal formats differ in epitope breadth; this can influence sensitivity to sequence variants, isoforms, or PTM-dependent recognition.

• Datasheet (JAK1-ANTIBODY-R32701)

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.